The billionaire’s closeness to Donald Trump and support for far-right causes have prompted a backlash, but Tesla’s sales are sinking for other reasons too.

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This suggests that a reaction from consumers who dislike Mr Musk’s antics are only one reason for falling sales. An updated Model Y, Tesla’s best-selling vehicle, has just gone on sale. In preparation Tesla ran down inventory of the old model, crimping supply. Customers doubtless held off purchases until the new car was available.